UNIFORM DELAY APPROACH TO WARRANTS FOR CLIMBING LANES
Current warrants for climbing lanes are discussed, and the consequences of their usage are explored. Data were obtained and analyzed to derive relationships among flow, gradient, and speed on South African roads. These relationships were used to calibrate TRARR, a simulation program developed by the Australian Road Research Board, and this, in turn, was used to establish relationships between delay and flow for various gradients. Actual delay is offered as an alternative warrant, it being pointed out that the Highway Capacity Manual offers delay as a criterion of Level of Service. The paper postulates that delay suffered would not be a function of the gradient on which it occurs if the climbing lane were the subject of economic analysis. Various isochronistic warrants are offered for consideration with the consequences of adoption of this approach being pointed out.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309047609
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1195, Geometric Design and Operational Effects. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Wolhuter, K M
- Polus, A
- Publication Date: 1988
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 101-110
- Monograph Title: Geometric design and operational effects
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Serial:
- Transportation Research Record
- Issue Number: 1195
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Climbing lanes; Highway grades; Simulation; Slopes; Traffic delays; Traffic flow; Traffic speed; Warrants (Traffic control devices)
- Old TRIS Terms: Isochronal lines
- Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;
Filing Info
- Accession Number: 00489694
- Record Type: Publication
- ISBN: 0309047609
- Files: TRIS, TRB, ATRI
- Created Date: Nov 30 1989 12:00AM